Remotely-activated vertebroplasty injection device
First Claim
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1. A remotely-activated device for injecting a bone cement into a patient, comprising:
- a pump defining an injection chamber having an exit opening, the pump having a bone cement for injection being located in the injection chamber, and a piston for driving the bone cement for injection through the exit opening;
a hollow bone needle extending from the exit opening for transferring the bone cement for injection directly to a patient;
a remote actuator, separate from the pump, and including a base and a lever, the lever having a first portion pivotally-connected to the base; and
a housing connecting the actuator to the pump across a distance;
whereby pivotal movements of the lever apply a force across the distance through the housing to cause responsive movement of the piston to drive the bone cement for remote injection through the exit opening and wherein the piston driver includes a gear mechanism.
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Abstract
A remotely-activated injection device for use in vertebroplasty is provided to inject a flourescent probe material into a patient. The injection device includes a pump defining an injection chamber having an exit opening; an actuator; and a cable having a first end coupled to the actuator, and a second end remotely engaging the pump. The actuator remotely controls the pump by responsive movement of the cable to thereby cause injection of a flourescent probe material from the injection chamber of the pump through the exit opening to the patient.
731 Citations
30 Claims
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1. A remotely-activated device for injecting a bone cement into a patient, comprising:
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a pump defining an injection chamber having an exit opening, the pump having a bone cement for injection being located in the injection chamber, and a piston for driving the bone cement for injection through the exit opening; a hollow bone needle extending from the exit opening for transferring the bone cement for injection directly to a patient; a remote actuator, separate from the pump, and including a base and a lever, the lever having a first portion pivotally-connected to the base; and a housing connecting the actuator to the pump across a distance; whereby pivotal movements of the lever apply a force across the distance through the housing to cause responsive movement of the piston to drive the bone cement for remote injection through the exit opening and wherein the piston driver includes a gear mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 30)
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7. A method for remotely injecting a bone cement comprising:
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guiding a hollow bone needle to a desired location within a patient'"'"'s vertebral body; placing a bone cement for injection into an injection chamber of a device, the device comprising; a pump defining the injection chamber having an exit opening, the device further having a piston for driving the bone cement for injection through the exit opening; the hollow bone needle extending from the exit opening for transferring the bone cement for injection directly to a patient; a remote actuator spaced a distance apart from the pump and including a base and a lever, the lever having a first portion pivotally-connected to the base; and a housing connecting the actuator to the pump; whereby pivotal movements of the lever apply a force through the housing to cause responsive movement of the piston to drive the bone cement for injection through the exit opening; pivotally moving the lever to apply a force across the distance through the housing to cause responsive movement of the piston to drive the bone cement for injection through the exit opening applying an imaging device to image the injection of bone cement at least at the desired location;
wherein the actuator is outside of an imaging field created by the application of the imaging device. - View Dependent Claims (8, 9, 10, 11, 12, 13, 27, 28)
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Specification